32-bit OpenCV on OS X Lion? Possible?

Question

I\'ve been googling and trying for days now, trying to figure out how to get 32-bit OpenCV working on OS X Lion, but can just find 64-bit version.

So i have the foll

Answer 1

Solved the problem.

Recap: it is possible to have 32-bit OpenCV libraries on 64-bit Mac OSX Lion.

How?

Step 1: Download OpenCV 2.4.0

Step 2: Download and install CMake.

Step 3: Untar the OpenCV package.

Step 4: Make a separate directory inside the OpenCV package for building

mkdir build
cd build
cmake -G "Unix Makefiles" -D CMAKE_OSX_ARCHITECTURES=i386 -D CMAKE_C_FLAGS=-m32 -D CMAKE_CXX_FLAGS=-m32 ..

(this will force the 32-bit compile)

make -j8
sudo make install

Step 5: Enjoy!

For forther reference please visit Mac OS X OpenCV Port Page

Thanks all for putting me on the right track:

@karlphilip: I tried to do as you suggested, but without the make options the compile phase fails, because the architectures are incoherent.

@hamstergene: MacPorts got stuck after the new installation, maybe I have some remains of the older install :( (strange, i followed the official instrusctions to remove it).

@Adrien: That's what I've done, but i had to merge 2 approaches :)